WO2014098456A3 - Procédé de codage/décodage d'une image, et dispositif l'utilisant - Google Patents

Procédé de codage/décodage d'une image, et dispositif l'utilisant Download PDF

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Publication number
WO2014098456A3
WO2014098456A3 PCT/KR2013/011755 KR2013011755W WO2014098456A3 WO 2014098456 A3 WO2014098456 A3 WO 2014098456A3 KR 2013011755 W KR2013011755 W KR 2013011755W WO 2014098456 A3 WO2014098456 A3 WO 2014098456A3
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WO
WIPO (PCT)
Prior art keywords
transformation
chroma component
blocks
basis
chroma
Prior art date
Application number
PCT/KR2013/011755
Other languages
English (en)
Korean (ko)
Other versions
WO2014098456A2 (fr
Inventor
김정선
박준영
김철근
헨드리헨드리
전병문
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US14/652,655 priority Critical patent/US9743091B2/en
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to JP2015549252A priority patent/JP6144776B2/ja
Priority to EP13864810.0A priority patent/EP2934012B1/fr
Priority to KR1020157011910A priority patent/KR102267518B1/ko
Priority to CN201380069329.7A priority patent/CN104885463B/zh
Publication of WO2014098456A2 publication Critical patent/WO2014098456A2/fr
Publication of WO2014098456A3 publication Critical patent/WO2014098456A3/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Color Television Systems (AREA)

Abstract

L'invention concerne un procédé de décodage d'une image, et un dispositif l'utilisant. Le procédé de décodage d'une image comprend les étapes consistant : à induire un bloc de composante de chrominance correspondant à un bloc de composante de luminance sur la base d'informations de format de chrominance indiquant un échantillonnage de composante de chrominance correspondant à un échantillonnage de composante de luminance ; à diviser le bloc de composante de chrominance en blocs de transformation d'une composante de chrominance pour une transformation sur la base d'informations de division indiquant si un premier bloc a ou non été divisé en seconds blocs pour une transformation ; et à acquérir des informations résiduelles sur les blocs de transformation de la composante de chrominance par réalisation d'au moins l'une d'une transformation inverse et d'une quantification inverse sur la base des blocs de transformation de la composante de chrominance.
PCT/KR2013/011755 2012-12-17 2013-12-17 Procédé de codage/décodage d'une image, et dispositif l'utilisant WO2014098456A2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US14/652,655 US9743091B2 (en) 2012-12-17 2013-12-12 Method for encoding/decoding image, and device using same
JP2015549252A JP6144776B2 (ja) 2012-12-17 2013-12-17 映像エンコーディング／デコーディング方法及びこれを用いる装置
EP13864810.0A EP2934012B1 (fr) 2012-12-17 2013-12-17 Procédé de décodage d'une image
KR1020157011910A KR102267518B1 (ko) 2012-12-17 2013-12-17 영상 인코딩/디코딩 방법 및 이를 이용하는 장치
CN201380069329.7A CN104885463B (zh) 2012-12-17 2013-12-17 编码/解码图像的方法和使用其的设备

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201261737828P 2012-12-17 2012-12-17
US61/737,828 2012-12-17
US201361752977P 2013-01-16 2013-01-16
US61/752,977 2013-01-16

Publications (2)

Publication Number Publication Date
WO2014098456A2 WO2014098456A2 (fr) 2014-06-26
WO2014098456A3 true WO2014098456A3 (fr) 2014-10-23

Family

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PCT/KR2013/011755 WO2014098456A2 (fr) 2012-12-17 2013-12-17 Procédé de codage/décodage d'une image, et dispositif l'utilisant

Country Status (6)

Country Link
US (1) US9743091B2 (fr)
EP (1) EP2934012B1 (fr)
JP (1) JP6144776B2 (fr)
KR (1) KR102267518B1 (fr)
CN (1) CN104885463B (fr)
WO (1) WO2014098456A2 (fr)

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KR20210126126A (ko) 2019-02-22 2021-10-19 후아웨이 테크놀러지 컴퍼니 리미티드 크로마 서브블록의 아핀 기반 인터 예측을 위한 방법 및 장치
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KR102213901B1 (ko) * 2019-03-21 2021-02-08 삼성전자주식회사 블록 형태별로 블록 크기가 설정되는 비디오 부호화 방법 및 장치, 비디오 복호화 방법 및 장치
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Also Published As

Publication number Publication date
JP2016506154A (ja) 2016-02-25
EP2934012A4 (fr) 2016-08-24
CN104885463A (zh) 2015-09-02
WO2014098456A2 (fr) 2014-06-26
US9743091B2 (en) 2017-08-22
US20150373332A1 (en) 2015-12-24
EP2934012A2 (fr) 2015-10-21
CN104885463B (zh) 2018-07-31
KR102267518B1 (ko) 2021-06-22
JP6144776B2 (ja) 2017-06-07
KR20150096375A (ko) 2015-08-24
EP2934012B1 (fr) 2020-09-02

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